14321220 has 48 divisors (see below), whose sum is σ = 41189568. Its totient is φ = 3715200.

The previous prime is 14321207. The next prime is 14321227. The reversal of 14321220 is 2212341.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 14321220.

It is not an unprimeable number, because it can be changed into a prime (14321227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1006 + ... + 5445.

It is an arithmetic number, because the mean of its divisors is an integer number (858116).

Almost surely, 2^14321220 is an apocalyptic number.

14321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14321220 is an abundant number, since it is smaller than the sum of its proper divisors (26868348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14321220 is a wasteful number, since it uses less digits than its factorization.

14321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6498 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 14321220 is about 3784.3387797606. The cubic root of 14321220 is about 242.8436054408.

Adding to 14321220 its reverse (2212341), we get a palindrome (16533561).

It can be divided in two parts, 14321 and 220, that added together give a palindrome (14541).

The spelling of 14321220 in words is "fourteen million, three hundred twenty-one thousand, two hundred twenty".